public static Tuple <LegendItemKey, ILegendItem>[] GetLegendItemsForLayer(LayerVM layer)
{
Dictionary <LegendItemKey, ILegendItem> resultDict = new Dictionary <LegendItemKey, ILegendItem>();
if (layer is MultiClassificationLayerIconPresentingVM)
{
PropertyRepresentation representation = PropertyRepresentation.SvgIcon;
MultiClassificationLayerIconPresentingVM mclipVM = (MultiClassificationLayerIconPresentingVM)layer;
if (mclipVM.ClassificationVM.CurrentClasses == null)
{
return(new Tuple <LegendItemKey, ILegendItem> [0]);
}
var classes = mclipVM.ClassificationVM.CurrentClasses.ToArray();
foreach (var c in classes)
{
LegendItemKey key = new LegendItemKey(mclipVM.ClassificationVM.PropertyName, c.ID, representation);
if (!resultDict.ContainsKey(key))
{
resultDict.Add(key, new SvgIconLegendItem(c));
}
}
}
return(resultDict.Select(kvp => Tuple.Create(kvp.Key, kvp.Value)).ToArray());
}
public SvgElement Paint(LayerVM vm, double availableWidth, double availableHeight)
{
if (vm is ClassificationLayerTextPresentingVM)
{
ClassificationLayerTextPresentingVM cltpVM = (ClassificationLayerTextPresentingVM)vm;
if (cltpVM.Text != null)
{
string[] spans = cltpVM.Text.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries).Select(s => s.Trim()).ToArray();
SvgText text = new SvgText();
text.Transforms.Add(new Svg.Transforms.SvgTranslate((float)textXoffset, (float)(availableHeight * 0.5 + textYoffset)));
foreach (var span in spans)
{
SvgTextSpan tspan = new SvgTextSpan();
tspan.Text = span;
tspan.FontSize = Helpers.dtos(fontSize);
tspan.Dy.Add(Helpers.dtos(fontSize * 1.2));
tspan.X.Add(0);
tspan.Fill = blackPaint;
text.Children.Add(tspan);
}
return(text);
}
else
{
return(new SvgGroup());
}
}
else if (vm is LengthLayerVM)
{
LengthLayerVM lrlcVM = (LengthLayerVM)vm;
SvgText text = new SvgText(string.Format("{0:0.##} м", lrlcVM.RealLength));
text.FontSize = Helpers.dtos(fontSize);
text.Fill = blackPaint;
text.Transforms.Add(new Svg.Transforms.SvgTranslate((float)textXoffset, (float)(availableHeight * 0.5 + textYoffset)));
return(text);
}
else if (vm is MultiClassificationLayerIconPresentingVM)
{
MultiClassificationLayerIconPresentingVM mclipVM = (MultiClassificationLayerIconPresentingVM)vm;
SvgGroup group = new SvgGroup();
float iconWidth = 32.0f;
if (mclipVM.IconsSVG != null)
{
SvgFragment[] fragments = mclipVM.IconsSVG.Where(f => f != null).ToArray();
if (fragments.Length == 0)
{
return(group);
}
float maxHeight = fragments.Select(f => f.Bounds.Height).Max();
float offset = (float)((availableWidth - fragments.Length * iconWidth) * 0.5);
foreach (var item in fragments)
{
SvgFragment copy = (SvgFragment)item.DeepCopy();
float aspectRatio = copy.Bounds.Width / copy.Bounds.Height;
copy.ViewBox = copy.Bounds;
copy.X += offset;
copy.Y = (float)(availableHeight - maxHeight) * 0.5f;
//copy.Transforms.Add(new Svg.Transforms.SvgScale(ratio));
copy.Width = iconWidth;
copy.Height = iconWidth / aspectRatio;
group.Children.Add(copy);
offset += iconWidth;
}
}
return(group);
}
else
{
return(new SvgGroup());
}
}